河流学

Five pieces of paleogeographic maps were made out with modern stratigraphic principles and sedimantary system method. It is shown by the maps that in the beginning of the Changzhougou time the Yanshan Region was occupied by alluvial environment with paleoriver flowing northeast, in the middle of the Changzhougou time a transgression changed whole Yanshan Region into shoreline-shallow sea environment gradually, and sedimentary boundary extended so continuously that by the Gaoyuzhuang time it had overpassed far beyond the Yanshan Region.

在缺乏良好等时面的情况下，本文依据现代地层学原理和沉积体系分析法编制了常州沟组初期与中期，串岭沟组初期，大红峪组初期，及高于庄组初期燕山地区的岩相古地理图，示意了燕山地区在长城纪时由冲积扇-河流为主的陆地环境向滨海-浅海环境的演变过程，并揭示了沉积区域不断扩大的趋势，表明常州沟组初期，以蓟县-宽城为轴线发育了冲积相组，海岸线可能在燕山以北，常州沟组中期发生海侵，沉积区扩大至整个燕山地区，大红峪组时海盆范围继续扩大，高于庄组时，沉积边界已远远超出燕山地区。

More specifically, they learned a good deal about river drainages and mountain barriers.

更特别的是，他们学到了如何更好的处理河流水和山脉屏障。

Results Metacercaria had existed in the gills and muscular tissue of the fish from the stream flow of Fuzhou town and the fishponds of farmers. After inoculation for 2 months, some eggs from cat's feces were found, at the same time, some adults from cat's hepatic ducts and bile ducts were obtained. According to identifying of etiology, these adults were confirmed to Clonorchis sinensis.

结果 从复州城河流水域及农家鱼塘中所捕获的淡水鱼发现，鱼鳃及肌肉组织中数量不等的囊蚴，通过人工感染接种猫后，约2个月左右时间，在其粪便中检获到虫卵，并从其肝胆管内获取成虫，经病原学鉴定为肝吸虫。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。